for loop and plotting 3 functions

Question

Danah Alotaibi 2021-1-31

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/732103-for-loop-and-plotting-3-functions

回答： Mathieu NOE 2021-2-1

how to use for loop to plot these 3 functions, the increment for the axis is 0.1 as shown

x1=0:0.1:3; %first range
x2=3:0.1:6; %second range
x3=6:0.1:8; %third range
f1= @(x1) cos(x1); %first function
f2= @(x2) exp(-0.4*x2); %second function
f3= @(x3) 2*cos(x3); %third function
plot(x1,f1(x1),x2,f2(x2),x3,f3(x3))
grid
title('Function F(x)');
xlabel('ranges');
ylabel('Functions');
legend

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Mathieu NOE 2021-2-1

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/732103-for-loop-and-plotting-3-functions#answer_611283

在 MATLAB Online 中打开

hello

mu suggestion below :

for ci = 1:3 % nb of functions to be displayed
    if ci == 1
        x=0:0.1:3; %first range
        y = cos(x); %first function
    elseif ci == 2
        x=3:0.1:6; %second range
        y = exp(-0.4*x); %second function
    elseif ci == 3
        x = 6:0.1:8; %third range
        y = 2*cos(x); %third function
    end
    
    plot(x,y)
    hold on 
    grid on
    title('Function F(x)');
    xlabel('ranges');
    ylabel('Functions');
    legend
end
hold off